diff --git a/src/components/Fields/Extensions.tsx b/src/components/Fields/Extensions.tsx
index 00dfa7d8..187e1422 100644
--- a/src/components/Fields/Extensions.tsx
+++ b/src/components/Fields/Extensions.tsx
@@ -28,7 +28,7 @@ export class Extensions extends React.PureComponent<ExtensionsProps> {
             {options.showExtensions &&
               Object.keys(this.props.extensions).map(key => (
                 <Extension key={key}>
-                  <FieldLabel>{key.substring(2)}</FieldLabel>:{' '}
+                  <FieldLabel>{key.substring(2)}:</FieldLabel>{' '}
                   <code>
                     {JSON.stringify(this.props.extensions[key]).replace(/(^")|("$)/g, '')}
                   </code>